When testing between a SACD and CD of the same title, you really need to have the redbook CD to compare the SACD to. Not just between the CD layer and the SACD layer. On all hybrids that I have and have the redbook CD of, the standard CD is obviously better than the CD layer on the hybrid. This is part of the wonder of hybrids being part of the concern, and I don't trust what is said to be or tech data here..I trust how they sound. The second part is just the $ trade off that is being made in these machines in their audio/power/parts sections to hit price points and still play various formats/multi-channels.
At nowhere else in the average to better audio only system do we make these consessions. These compromises in these SACD source units is akin to having the Rotel receiver reviewed in the latest TAS and scraping the idea of integrateds or seperates...and putting it all in one chassis. Audio fans decided long ago that having a degree of seperation in pre, power, tuner(here even the best leave out the A.M. band) was the path to higher fidelity.
What has gotten most of audio to where it is has been refinement/focus in seperate areas. Usually by companies that even further refine and focus...ie: CJ and ARC..mainly tubes, Magnum Dynalab..mainly tuners, etc.
Think what you want, but to me these combo SACD/SACD-multi/CD players are a compromise. A compromise not unlike receivers, combo DVD/VHS players, tuners with both A.M. and F.M., clock radios(Henry Kloss has made several famous radios...can't remember any famous clock radios)..
Just depends on what you want. SACD was/is touted as a superior format...and compromise is not the way to prove and establish it as that...these combos are a way to leave it in Beta, DAT..etc limbo for a few years.